Loom



. S pt. 30, 1924.

W. S. WELLS LOOM Filed April l4, 1923 2 Sheets-Sheet l Patent Sept, 36),W24,

N lo

Application filed April 14, 1923.-' Serial No. 632,070.

To all whom it may concern:

Be it known that 1, WILLIAM S. WELLS, a citizen of the United States,residing at Bethlehem, in the county of Lehigh and State ofPennsylvania, have invented certain new and useful Improvements inLooms, of which the following is a specification. I

This invention relates to looms, and it consists in a loom having meansto hold stretched the warp and woven cloth, means to hold the warpthreads converging in plan toward the cloth, and a comb to beat up thefillingintroduced'into sheds formed in the warp, said comb beingconfined to move through and in angular relation to the plane which thestretched warp and cloth tend to assume and to and from the fell of thecloth with its dents intermeshing with the warp threads and having saiddents converging longitudinally thereof toward the line across themwhere they have impact with the fell of the cloth. The invention isdesigned especially for the weaving of fabric from asbestos or the likestrands which are quite thick but have very little tensile strength andresistance to abrasion, so that when it is attempted to weave thismaterial in ordinary looms the warp is worn away by the reed and as anincident of the shedding operation causing the warp threads to abradeeach other and the weft forms such a bulky package that too frequentreplenishment of the filling carrier is required. While the essentialsof the invention are those stated above, in practice a loom embodyingthe invention will of course include a carrier for the filling or weftand provision for forming the sheds, the-latter in the example hereinillustrated and described being constituted by the second of theaforesaid means, which is formed as two' harness frames arranged to movereversely to each .her up and down.

In the drawings,

Fig. 1 is a side elevation of a loom embodying the invention; and

Figs. 2 and 3 are plan views, partly in section, of the forward part ofthe loom, showing certain parts in two different positions.

a is the loom frame. The said means to hold stretched the warp A andcloth B in- ,cludes the front and rear cross-bars b and c and anysuitable take-up means (i and let off means e. The filling orweft-carrier is shown at f, f being its guide for the weft C.

The said means to hold the warp threads a converging toward the clothconsists of frames 9 which move up and down in fixed guides h and haveupright dents g spaced apart appreciably further than the warp threadsare in the cloth, eyelets for the warp threads being afforded betweenthese dents by pairs of spaced, preferably grooved, guides g rigidlyconnecting them, as by bemg soldered thereto.

The said comb consists of a support (here abar) 0, which is journaled inthe loom frame close to the fell w of the cloth and in the present casebeneath it, and dents 1) each having one end set fast in the bar and theother end free. The comb has a crank g to which any suitable means foroscillating it may be attached. The dents, when the comb is oscillatedfrom the position of Fig. 1 or Fig. 2 to that of Fig. 3 (where theystand upright, abutting the fell 00), intermesh with the warp threads.Furthermore, they converge from their free ends toward the line where,when thus abutting the fell, they have impact with the latter.

In the preferred form the spacing of the dents along the line of theirimpact with the fell is substantially the same as that of the warpthreads in the cloth B and of their free ends substantially the same asthe threads of the warp A in the transverse line where the free ends ofthe dents enter and leave the warp as the comb rises and falls. The combis set so that its dents will enter and leave the warp with as littlecontact therewith as possible.

Of course the warp threads are arranged to converge toward the fell ofthe cloth (or rather diverge therefrom) for the purpose of avoidingtheir being abraded by each other in their up and down movementsincident to shedding. By converging the dents of the comb in the Waystated and properly directing its course back and forth through the warpI can attain movement thereof with substantially no contact of the combwith the warp threads. Its course of movement may be directed indifferent ways, but in point of simplicity and smoothness andreliability in action I find it best to ivot the reed with its axis ofmotion out of (as below) and e. \se to the plane in which the cloth andwarp tend to stand stretched, and in that case whatever the position ofthe comb there Will be a desirable focusing of its dents towardsubstantially the same line (the fell) as that toward'which the warpthreads focus. Moreover, the extent of possible rubbin of the warpslengthwise thereof on each bee and forth movement of the beating upmedium may be much less in the case of m comb (especially when.pivotally movable than in the case of the ordinary reed. v

Again, since the movements of the beatingup medium in my constructionhave nothing to do with circumscribing the dimensions of the fillingcarrier, which may be arranged to move always through the widest part ofthe shed, the filling or weft package may be of.

considerably greater capacity than in ordinary looms.

Havin thus fully described'my invention, what I c aim as new and desireto secure by Letters Patent is:-

1. A loom including means to hold stretched the warp and woven cloth,means to hold the warp threads converging in plan toward the cloth, anda comb to beat up the filling introduced into sheds formed in the warp,said comb being confined to move through and in angular relation to theplane which the stretched warp and cloth tend to assume and to and fromthe fell of the cloth with its dents intermeshin with the warp threadsand having said dents converging longitudinally thereof toward. the lineacross them where they have impact with the fell of the cloth.

2. A loom including means to hold stretched the warp and woven cloth,means to hold the war threads converging in plan toward the clot and acomb to beat up the filling introduced into sheds formed in the warp,said comb extending transversely of said plane and being pivoted on anaxis substantially parallel with and close to the tell of the cloth tomove through said plane with its dents intermeshing with the warpthreads and having said dents converging longitudinally thereof towardthe line across them where they have impact with the fell.

In testimony whereof I affix my signature.

WILLIAM S. WELLS.

